import random
with open("mac.txt", "w+") as f:
    for i in range(100):
        hex1 = "".join([random.choice("0123456789ABCDEF") for i in range(2)])
        hex2 = "".join([random.choice("0123456789ABCDEF") for i in range(2)])
        hex3 = "".join([random.choice("0123456789ABCDEF") for i in range(2)])
        f.write("01-AF-3B"+"-"+hex1+"-"+hex2+"-"+hex3+"\n")
